Stave-sawing machine.



No. 664,399. Patented 1m. 25, I900. n. P. GERLACH & F. STAHL.

STAVE SAWING momma.

(Application filed Mar. 24, 1900.|

7 Sheets-Sheet 1.

(No Model.)

No. 664,399. Patented Dec. 25, I900.

n. P. GEBLACH & r. STAHL.

STAVE SAWING MACHINE. (Application flxe Mar. 24, 1900.,

7 Sheets-Sheet 2.

(No Model.)

9M8. M 41 dZQQ/WZC No. 664,399. P atented Dec. 25, I900. n. P. GERLACH &F. STAHL.

' STA'VE SAWINGMACHINE.

(Application filed Mar. 24,1900;-

7 SheetsSheet 3.

(No Model.)

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No. 664,399. Patented Dec. 25, I900,

R. P. BEBLACH & r. STAHL.

STAVE SAWING MACHINE.

(Appliu-tjon mean; 24, l900.|

(No Modal.) 7 Sheets-Sheet 4.

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No. 664,399. Paten ted Dec. 25, I900.

Y R. P. GERLACH"& F, STAHL.

STAVE SAWING MACHINE. (Application filed Mar. 24, 1900.:

(N0 MudaU 7 Sheets-$heet 5.

11v VENTORS 733: A UOHNE rs m: now-us Perms co, FNOTO-LITNQ, WASHINOYDN,a. q.

I WITNESSES 190M163 m a 441% No. 664,399. Patented Dec. 25, I900. R. P.GERLAGH & F. STAHL.

STAVE SAWING MACHINE.

( Application filed Mar. 24, 1900.|

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No. 664,399. menu: Dec; 25,1900, n. P. GERLACH & F. sun

.STAVE SAWING MACHINE.

(Application filed 1hr. 24, 1900.; (No Modal.) 7 Shoots-Shut '7WITNESSES m YEA/T0192 ,LOWJS m A rromvss UNITED STATES PATENT OFFICE.

RUDOLPH P. GERLACH, OF CLEVELAND, AND FRANK STAHL, OF

LAKEWOOD, OH-IO.

STAVE-SAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 664,399, dated December25, 1900. Application filed March 24,1900. Serial No. 9,981. (No model.)

T at whom it may concern.-

Be it known that we, RUDOLPH P. GERLAOH, a resident of Cleveland, andFRANK STAHL, a resident ofLakewood,in the county of Ouyahoga and Stateof Ohio, have invented certain machines for sawing staves from bolts ofWood, and more especially toa machine of the character indicated,comprising a cylindersaw.

I One object of our invention is to reduce the weight of machines of thecharacter indicated and to render the difierent parts thereof moreconveniently accessible than heretofore.

Another object of the invention is to provide improved means forpreventing displacement of the bolt-carriage uponthe track along whichit is propelled during thestave-sawing operation.

Another object of the invention is to provide an improved gage forpredetermining the thickness of the stave that is to be sawed from thebolt operated upon.

Another object of the invention is to provide mechanism whereby the gageemployed in predetermining the thickness of the stave is renderedcapable of being tilted as required to enable the operator to saw awaywedge-shaped or angular pieces from the bolt that is to be convertedinto staves, so as to saw the bolt at all times during the conversion ofthe bolt into staves on lines approximately or nearly radial of the boltand as nearly in line with the grain of the wood as is practicable andproduce staves that are more durable than would be the case if sawing ofthe bolt approximately radially of the bolt were not so closelyobserved.

Another object of the invention is to support thestave-thickness-controllin g gage from a carriage that is supported fromthe same frame that bears the bolt-carriage, so that the bolt-carriageand the stave-carriage are always in the required relative position.

Another object of the invention is not only i to form the frame thatcarries the bolt-car riage and the gage-carriage rigid with the bed thatbears the cylinder-saw, but to have the saw adjustable toward and fromthe bolt-car riage, so that no displacement or disturbance of the bedwill result in the disturbance of the desired relative adjustment of thesaw, bolt-carriage, gage-carriage, and the mem* bers or devicesconnected with the said parts. With these objects in view and to the endof realizing other advantages hereinafter appearing our inventionconsists in certain features of construction and combinations of partshereinafter described, and pointed out in the claims.

In the accompanying drawings, Figures I and II are views in perspectiveof a machine embodying our invention. Fig. III is a forward endelevation of the machine, partly in section. Fig. 1V is a side elevationof a portion of the bolt-carriage and the frame that supports the latterand shows more particularly the back side of thestave-thicknessregulating gage and mechanism for adjusting the gage.Fig. V is an end elevation, largely in vertical section, on line V V,Figs. II and IV. Fig. VI is an inner side elevation, partly in section,of a gage-bearing arm of the gage-carriage and the operative connectionbetween the gage carriage at the lower end of the said arms with thelever-operated shaft employed in the adjustment of the gage radially ofthe saw. Fig. VII is a side elevation in section of the rear end portionof the saw and shows more particularly the device for moving a stavethat is sawed from the bolt and drops internally of the saw forwardlyand ejecting the stave from the saw at the saws forward end. Fig. VIIIis a view in perspective of the. stave-ejector. Fig. IX is a transversevertical section of the stave-thick[less-controlling gage and showsmeans instrumental in tilting the said gage and also means that acts toretain the gage in its normal position. Fig. X is a transverse verticalsection of the gage, more clearly showing the construction of the meansemployed in retainingthe gage in its normal position. Fig. XI is a sideelevation, largely in vertical longitudinal section, of the frame thatsupports the bolt-carriage, and, among other things,means employed inreturning the bolt-carriage to its starting position after the sawingoperation. The outer arms orbrackets g of the bolt-carriage are brokenaway in this figure. Fig. XII is an elevation in vertical section online XII XII, Fig. XI, looking in the direction of the arrow. Fig. XIIIis a vertical section on line XIII XIII, Fig. XII, looking in thedirection of the arrow. Fig. XIV is a vertical section on line XIV XIV,Fig. XII, looking in the direction of the arrow. Fig. XV is a transversevertical section on line XV XV, Fig. XI, looking in the direction of thearrow. Fig. XVI is a transverse vertical section on line XVI XVI, Fig.XI, looking in the direction of the arrow. Fig. XVII is a forward endelevation, partly in transverse section, showing a portion of thebolt-carriage, the adjacent portion of the saw, thestave-thicknesscontrolling gage arranged in its normal position orconcentrically of the saw, and a bolt placed upon the bolt-carriage andbeing operated upon. Fig. XVIII is a forward end elevation, partly. invertical section, showing a portion of the boltc'arriag'e, the adjacentportion of the saw, a bolt upon the said carriage having been operatedupon and having had several staves sawed therefrom, and the gage havingtilted the bolt as required to remove a wedgeshaped or angular piecefrom the bolt, so as to render possible the conversion of the remainderof the bolt into staves without materially deviating from the sawing ofthe bolt upon lines approximately radially of the bolt.

Figs. XII to XVI, inclusive, are drawn on a corresponding scale that islarger than the vided with a pedestal a.

scale employed in the preceding figures, and portions are broken awayand in section here and there in the drawings to reduce the size of thedrawings and to more clearly show the construction.

Our im proved machine comprises a horizontally-arranged bed a. The bed acomprises a metal casting suificiently wide at its 'base to givestability and equilibrium to the machine. The sides of thebed slopeupwardly and inwardly from the base, so that the bed is narrower at thetop than at its base. The reduction of the width of the bed upwardlyrenders all the parts mounted upon the bed conveniently accessible. Thebed,-as shown in Figs. II and III, has each end thereof pro- Thepedestals a and a are formed integral with the bed and arranged asuitable distance apart longitudinally of the bed.

The cylinder-saw of the machine consists of a barrel-shaped shell orcylinder 1), that is serrated at one end in the usual manner. The

saw is arranged horizontally and longitudinally of the bed and has itsrear end closed by a head I), that is operatively mounted in anyapproved manner upon the suitablydriven shaft 0, that extends centrallyand longitudinally through the cylinder of the saw and is consequentlyarranged horizontally and is supported at the ends of the saw bypillow-blocks d, that are supported from the pedestals of the bed. Thehead I) is provided upon its inner or forward side with an annularrecess or groove 19 that is snugly engaged by the rear endof thecylindrical shell I), as shown in Fig. VII. The head I) is provided'atits periphery with an inwardly-projecting annular flange b"', thatsnuglyoverlaps the outer side of the shell I) and is secured to thelatter, preferably removably, by

means of bolts or screws b, that are arranged with their heads abuttingthe external peripheral surface of the said flange and have their shanksengaging correspondingly-threaded holes formed in the aforesaid shell.

The bed a is provided at the left-hand side, as shown in Fig. I, withlaterally-projecting and upwardly-inclined arms or brackets a and a,that are formed upon and integral with opposite ends, respectively, ofthe bed.

A generally rectangular frame 6 is mounted upon the arms a and isarranged longitudinally of and a short distance from the saw and extendsa suitable distance forward of the forward end of the bed, andconsequently forward of the saw. The upper or frame-bearing surfaces ofthe arms a are arranged in the same inclined plane. The frame e is composed, preferably, of a metallic castingand comprises two parallel sidemembers 6 and e,

that extend longitudinally of the frame and are arranged at right anglesto the framebearing surfaces of the arms a. The frame 6 comprisesalsotwo end members 6 and 6 that are-arranged transversely of the frameat opposite ends, respectively, of the frame and that -are arrangedbetween and brace apart the side members 6 and e. The frame 6 comprises,furthermore, any suitable number of intermediate transversely arrangedmembers 6 suitably spaced between the ends of the frame and bracingapart the side members e at suitable intervals between the ends of theframe. All of the said frame memberstheside members 6, the end members eand the intermediate transverse members e are formed integral with eachother, so as to form a structure of considerable stabilitynotwithstanding the lightness conferred upon it by its largely hollowcharacter. The frame e is arranged opposite the lower portion of the sawand in the main below the axial line of the saw. The frame is rigidlysecured to the arms a of the bed and at its inner side-that is, at theouter side of its inner side member erests against shoulders 0. formedupon the said arms Q The frame 6 is secured to the arms or", preferablyremovably, by means of bolts or screws 0. extending through the saidarms into the lower portion of the frame, as shown in Figs. I and III.

A track is formed upon the frame e and comprises, preferably, two steelrailsfand f, that are arranged at opposite sides, respectively, of theframe and supported from and at the outer sides, respectively, of theframe and preferably supported from and at the outer side of thedifferent side members, respectively, of the frame. The said track isarranged below the axis of the saw, and of course the inner rail of thetrack is arranged below the tracks outer rail. Preferably each rail ofthe track rests upon a series of lugs 6 that are formed upon andintegral with the frames side member 6, that supports the said rail, andare arranged at suitable intervals longitudinally of the said sidemember, and each rail above the rail-supporting lugs is secured to thelug-bearing member by a bolt or screw f, as shown in Figs. I, IV, and V.

A bolt-carriage g.(a vehicle for carrying a bolt that is to be convertedinto staves to and from the saw and during the sawing operation) ismounted upon the rails f andf and is consequently arranged in aninclined plane that is parallel with the inclined plane in which thetrack is located. The bolt-carriage comprises the following members: twopairs of wheels g and g, arranged at or near opposite ends,respectively, of the carriage, with the wheels of each pair of wheelsengaging the difierent rails fand f, respectively. The wheels g aresuitably connected with arms or brackets g depending from platforms gand 9 with which the carriage is provided-that is, the carriagecomprises two platforms g and g that form opposite end portions,respectively, of the carriage and are provided at theirinner ends withthe depending arms or brackets g ,'t0 which the aforesaid wheels g areattached, as shown in Figs. I, III, and V. The bolt-carriage comprisesalso two tubular side bars 9 that are arranged a suit-able distanceapart laterally and extend between and into the platforms 9 and g andconstitute a connection between the platforms that are secured in anyapproved manner to the said bars. (See Figs.XI, XV, and XVI.) Twocross-bars g and g connect together and brace apart the tubular sidebars of the carriage. The said cross-bars are arranged a suitabledistance apart longitudinally of the carriage between the two platformsof the carriage. Each cross-bar has two eyes or sleeves g and 9 thatembrace the different side bars 9 respectively, and are suitably securedto the said bars 9 The cross-bar g that is nearer the forward end of themachine, may be permanently fixed to the side bars g but the othercross-bar 9 that is nearer the rear end of the machine, should beadjustable laterally--that.- is, longitudinally of the bolt-carriageandis secured in the desired adjustment by set-screws 9, that engage theside bars through correspondiugly-threaded holes formed in the eyes orsleeves of the crossbars. Hence the eyes or sleeves of the adjustablecross-bar form slides that engage the slideway, forming tubular sidebars, and are secured in the desired adjustment of the crossbar to theside bars by means of the aforesaid set-screws. Each crossbar has itstop provided with a comparatively thin work-bearing flange g that isformed integral with and extends longitudinally of the said bar. Thebolt that is to be sawed into staves rests upon the flanges g of thesaid cross-bars.

Means for engaging and holding opposite ends of the bolt that is to besawed into staves during the sawing operation is provided, as willhereinafter appear.

Means for preventing displacement of the bolt-carriage is provided andcomprises the following: Each side member e of the cars riage-bearingframe (see Figs. III and V) is provided at the top and upon its innerside with a flange e that projects laterally and inwardly and extendslongitudinally of the frame 6. The flange e of the inner side memher (2has its edge engaged by two wheels 9 and 9 that are arranged a suitabledistance apart and supported from the different platforms, respectively,of the bolt-carriage (see also Fig. Xl)that is, each platform of thecarriage is provided witha depending arm or bracket 9 that bears a wheelg", that is'arranged in a plane at right angles to the flange e of theinner side member 6 of the frame 6 and has its periphery engaging theedge of the said flange. The lower side of the flange e of the outerside member e of the frame e is engaged by the peripheral surfaces oftwo rollers or wheels g that are arranged a suitable distance apartlongitndinally of the boltcarriage and are supported from the saidcarriage in any approved manner. (See Figs. I, III, and V.) Preferablythe said wheels or rollers g are supported from the difierentplatforms,respectively, of the bolt-carriage (see also Fig. XI) andsuitably attached to an arm or bracket g, depending from and rigid withthe respective platform. The rollers or wheels 9 are provided,respectively, with an external annular flange g, that overlaps the edgeof the flange e of the outer side member e of the frame 6. Theoverlapping of the edge of the said flange e by the flanges 9 of therollers or wheels Q13 prevents outwardly lateral displacemento f thebolt-carriage. The

engagement of. the wheels 9 with the flange ofthe inner side member 6 ofthe said frame a prevents lateral displacement of the bolt-carriage inthe direction of the saw, and the engagement of the rollers or wheels 9with the lower side of the flange e of the outer side member e of thesaid frame 6 prevents displacement of the carriage upwardlyfrom thetrack and of course prevents tipping of the said carriage laterally andinwardly in the direction of the saw.

A gage instrumental in predetermining or regulating the thickness of theslave that is to be sawed from the bolt is provided and, as shown inFigs. I, II, III, IV, and V, comprises a segmental plate h, normallyarranged concentrically of the saw between the bolt-car riage and theaxial line of the saw and movable radially of the saw. The thickness ofthe stave that is to be sawed from the bolt will of course correspond tothe space radially of the saw between the forward side of the gage andthe inner periphery of the saw. The arrangement of the gage is,furthermore, such that its lower edge shall in its normal position beopposite or approximatelyopposite the inner ends of the bolt-bearingflanges g of the bolt-carriage, so that the gage is arranged in the mainabove the inner side of the bolt-carriage. As shown in Fig. XVII, thefirst piece that is cut from a side of the bolt is waste, so far asmaking staves is concerned; but as soon as this piece is cut awaythe-bolt is allowed to shift in the direction of the gage, and the sidethus operated upon will then conform to the forward or working surfaceof the gage.

The gage in order to render it adjustable laterally and radially of thesaw as required in sawing diiferent thicknesses of staves upon one andthe same machine is supported from a carriage that is supported,preferably, from and below the forward end portion of the frame 6forward of the bed of the machine and is movable transversely of theunder side of the said frame in a plane that is parallel with the radialline of adjustment of the gage, and we would here remark that not onlythe gage-carriage, but the bolt-carriage and the frame 6, that bearsboth of the said carriages, are preferablyarranged in inclined planesparallel with the radial line of adjustment of the gage.

The gage-carriage comprises two suitablyoperated slides h, h, that arearranged below and transversely of the frame 8 forward of the machinesbed and are arranged, furthermore, a suitable distance apartlongitudinally of the said bed. The slides 72/ are supported in anyapproved manner and are movable the gage.

transversely of the under side of the frame e in an inclined planeparallel, as already indicated, with the radial line of adjustment ofEach slide hterminates at its inner end in an upwardly and inwardlyinclined upright arm h to the upper end of which the gage-plate h issecured in any approved manner-that is, the gage-plate h is attached atits back side to the upper ends of the aforesaid arms of the slides, andconsequently the gage is shifted radially of the saw in the onedirection or the other, according as the aforesaid slides are movedendwise in the one or the other direction.

The means employed for operating the slides h (see Figs. I, IV, V, andVI) comprises, preferably, a manually-operated shaft k, that is arrangedbelow the slide and longitudinally of the frame e and has bearing in twopairs of boxes j, formed below the difierent slides, respectively, andsupported from or formed upon the frame 6. The boxes of each pair ofboxes 3' are arranged the distance apart required to accommodate a freeinterposition between them of a pinion k,-that is operatively mountedupon the shaft is and engages a rack h suitably secured to or formedupon the under side of the slide h, that is arranged next above the saidpair of boxes. The slide ways a for the slides h are formed,preferably,next above the boxesj, that afiord bearing for the shaft 10, asillustrated in Fig. VI, that shows one of the pairs of boxes j, theslide next above the same, and the operative connection between theslide and the shaft, and it will be observed that the upper ends of theboxes are instrumental in the formation of the saidslideways e". Theside walls of each slideway e are formed by a cap 6 that straddles theslide engaging the said slideway, which cap is preferably formedintegral wit-h the frame 6. Each cap 6 is instrumental in excluding theingress from above of dust and dirt to the slideway 6 that is formedtherein, and is provided with any suitable number of apertures e forconducting oil or lubricant to the slideway. The space containing thepinion and rack between the boxes of each pair of boxes j is closed atthe bottom by a cover 11, that prevents the ingress from below of dustand dirt to the said space.

Obviously the gage-bearing slides are actuated in the one direction orthe other, according as the shaft 7c is turned in the one or the otherdirection. The shaft k is provided at its outer end with a lever 10 (seeFigs. I, II, and IV,) that is operatively connected by means of a link10 with the hand-lever k, that is fulcrumed, as at to a bracket 6 withwhich the forward end of the frame 8 is provided. The lever k isprovided with a bolt is", adapted to engage a notch of a series ofnotches e formed in the stationary segment 6 that is fixed to or formedupon the leverbearing bracket (2 in any approved manner. Asuitably-applied spring acts to retain the bolt 10 in its operativeposition, and a lever it that is operatively connected with the saidbolt, is fulcrumed to the lever and arranged as required to render itcapable of rendering the bolt inoperative against the action of thespring it". Obviously, therefore, the tilting of the lever k in the onedirection or the other upon rendering and holding the bolt inoperativewill result in the rotation of the shaft is in the one or the otherdirection.

Although the bolt will in sawing the staves tip against the gage-plate hupon placing the bolt upon the bolt-carriage, the bolt has its endsseized or held during the sawing operation by two dogs Z and m, that aresupported from the different platforms 9 and 9 re-' spectively, of thebolt-carriage and are arrangedvis-a-vis, so as to render them capable offirmly seizing a bolt interposed be tween them and prevent the weight ofthe bolt coming on the gage-plate. The dog nearest the rear end of themachine viz. the dog Z-is adjustable longitudinally of the bolt-car-.riage, as shown in Figs. XI and XVI, wherein the said dog is formedupon a slide Z, that is arranged longitudinally of the bolt-carriage andengages a slideway g formed upon the said carriage in any approvedmanner. The dog 6 is securedin the desired adjustment by any suitablenumber of set-screws P, that engage with the dog-slide l throughcorrespondiugly-threaded holes formed in one of the side walls of theslideway Z. The dog nearest the forward end of the machineviz., the dogm-is shifted longitudinally of the carriage as required to render itcapable of being moved into engagement with or withdrawn from the bolt.The dog 'm, as shown in Figs. XI and XIV, is formed upon one end of arack m, that is arran ed horizontally andlongitudinallyof the bo'r-carriage. The rack 172 has its teeth formed upon its upper side andrests upon the bottom of a slideway g", that is formed upon thebolt-carriage in any approved manner. A man ually-operated shaft 172 isarranged above and transversely of the rack m and is supported from theboltcarriage in any approved manner and is 'operatively provided at oneend (see Fig. XII) with a hand-wheel m for turning the same A pinion m(see Figs. XII and XIV) is operatively mounted upon the shaft m andmeshes with the rack m. Obviously, therefore, the dog-bearing rack 77?.is shifted longitudinally in the one direction or the other, accordingas the shaft, by means of its hand-Wheel m is turned in the one or theother direction. Obviously by means of the adjustability of the two dogsZ and m toward and from each other different lengths of bolts arereadilyaccommodated. Therefore the adjustability of the rear cross-bar g of thebolt-carriage longitudinally of the carriage is important when thelength of the bolt is such as to require the shifting of the dog Ztoward the forward end of the machine. Upon placing the bolt that is tobe sawed into staves in position upon the bolt-carriage the dogs Z and mare adjusted as required relative tothe bolt; but the bolt must move inthe direction of the gage after the cutting of each stave or strip fromthe bolt, and consequently means for effecting a slight movement of thedogbearing rack m to render the dog mcapable of releasing and rebi tingthe bolt preparatory to the commencement of each sawing operation isprovided, and comprises, preferably, a sleeve m (see Figs. XII and XIIL)that is loosely mounted upon the shaft m and has a hand-lever m forturning the sleeve, and a mutilated or segmental gear or pinion m isoperatively mounted upon the sleeve m next to the pinion m and isarranged as required to render it capable of engaging and actuating therack m to a limited extent upon a proper manipulation of thesleeve-lever m.

A buffer at, that is shown only in Fig. XI, is supported frpin theforward end of the frame e and is adjustable, preferably, longitudinallyof the said frame. The bufifercoinprises, preferably, a metallic plate'n, corrugated transversely upon its lower side and engaging thecorrespondingly-corrugated upper surface of a block a", that is suitablysecured to the forward end of the frame e. A bolt or screw 12 extendsvertically through the buffer-plate n and engages acorrespondinglythrea-ded hole formed in the block 71 The bufier-plateshole n through which the screw 01 extends, is elongated longitudinallyof the plate to accommodate the longitudinal adjustment of the buffer,and a washer 71 that is interposed between the head of the screw a andthe upper side of the said plate n, coopcral es With the said screw insecuring the buffer in the desired adjustment. The bufierplate has itsinner end provided with the buffer proper, that is composed of a blocka, of rubber or other elastic material, and projects beyond the innerend of the plate and is held in place in any approved manner. In itsstarting position the bolt-carriage is arranged next to the buffer andhas its outer end engaging the bufier proper.

The bolt-carriage is manually actuated in the direction of the sawduring the sawing operation and is provided with a handle g, as shown inFigs. I and II for the said purpose.

A rod 0 (see Figs. III and XI) is arranged between the side members 6and e of the frame e and is stationary, being supported from one of thesaid side members. A cylindrical case p is mounted upon and arranged toslide endwise of the rod 0. A spiral spring 0 is confined upon the rod 0within the case p and is interposed, preferably, between the forward endor head 19 of the case and an annular shoulder 0 formed upon the rod 0within the rear end of the case. The spring-containing case p isprovided at or near its rear end with an upright arm p that is fixed tothe case in any approved manner and projects upwardly into the path ofthe bolt-carriage, and the arrangement of the parts is such that thebolt-carriage when actuated during the sawing operation will engage andthereupon actuate the arm 19 and the springcontaining case 19, connectedtherewith, against the action of the spring 0', so that upon thecompletion of the sawing operation when a stave has been sawed from thebolt the spring will be compressed or under tension and upon thenleaving go of the handle 9 of the bolt-carriage will return the saidcarriagetoitsstartingposition. The arrangement of the parts ispreferably such that the spring will not be compressed until theboltcarriage has been actuated part way, preferably about half-way,during the sawing operation, so that the bolt-carriage shall not strikethe bufier with too much force upon its return by the action of thespring into its starting position.

Each stave or piece that is sawed from the bolt drops, upon thecompletion of the sawing operation, internally of the cylinder of thesaw, into the trough t, that is arranged within and extendslongitudinally of the said cylinder between the path of thebolt-carriage and the axial line of the saw. (See Figs. II, III, andVII.) The trough t is formed in any approved manner and is suitablysupported from or secured to the forward pedestal of the bed The outerside Wall of the trough extends into close proximity to the innerperipheral surface of the saws cylinder. The inner side wall t of thetrough t is arranged concentrically or approximately concentrically orthe saw. An upright plate r, employed to eject or remove from thetrough't a stave dropping into the trough, is provided and extends fromside to side and from top to bottom of the trough. The stave-ejector ris provided at its upper end with a forwardlyextending shank-forming rodr, that is attached atits outer end, in any approved manner, to an armor bracket g ,formed upon and rigid with the bolt-carriage, whichbracket or arm extends to theshankof thestave-ejector over the gage h,so as to avoid interference with the location and operation of the saidgage. I

An important feature of our improved machine consists in reducing thefriction between the stave-ejector and the stave-receiving trough to aminimum, and, as shown in Figs. III and VII the stave-ejecting plate rdoes not restupon the bottom of the trough, but is supported exclusivelyfrom a head 2?, formed upon the top and extending longitudinally of theinner side wall 15 of the trough t.

The plate T has its upper end provided with a half-sleeve r ,thatconstitutes a slide or carriage that straddles and is adapted to moveupon and endwise of the head i during the actuation of the stave-ejectorwhen the boltcarriage is returning to its starting positionafterthesawingoperation. Thearrangement of the parts is such, therefore,thata stave or piece sawed from the bolt drops into the trought forwardof the stave-ejector r and is removed by the latter from the troughduring the return of the bolt-carriage into its starting position.

By the construction hereinbefore described it will be observed that thebolt-carriage and the stave-carriage and other parts carried by the saidcarriages are supported from one and the same framework-viz., from theframe e and consequently there is no liability of any of the said partssettling or otherwise becoming displaced independently of the remainderof the said parts. In the assemblage of the parts during the erection ofthe machine it is only necessary to have the frame 6 and the sawproperly adjusted relative to each other, and the simpler way is toadjust the saw relative to the said frame e. To accommodate thisadjustment of the saw and to accom modate the employment of sawsdiifering in diameter, respectively, the pillow-blocks d, that afiordbearing for the saw-bearing shaft 0, are adjustable laterally of the bedtoward and from the frame 6, and the pillowblock d of each pedestala, asshown in Fig. 111, is seated, therefore, upon the bottom of a recess aformed in the upper end of the said pedestal, and is provided with twoset-screws d and d, that are arranged in line at oppoa hand-lever a sitesides,respectively, of theblock and adapted to engage the different endwalls, respectively, of the aforesaid recess a in the desired adjustmentof the saw. By properly manipulating the set-screws d thepillow-blocks, and

consequently the saw-bearing shaft and the saw supported therefrom, canbe adjusted as required to properly adjust the saw relative to thebolt-carriage. When the saw has been properly adjusted relative to thebolt-carriage, each pillowrblock is secured in the desired adjustment bya bolt d and nut d gwith which the said block is provided. The bolt (31extends vertically through the pillow-block and has its head engagingthe top of the said block. The nut 61 that is mounted upon thecorrespondiugly-threaded shank of the said bolt, is arranged within arecess or slot a formed within the pedestalthat supports the saidpillow-block and extending transversely of the bed of the machine. Thenut is arranged, therefore, to engage the top wall of the said slot orrecess a. The nut-bearing bolt extends loosely'through acorrespondingly-arranged hole a, that is formed in the said wall andcommunicates with the slot or recess a, and is elongated longitudinallyof the slot or recess 01, to accommodate the location of the bolt (1during the adjustment of the saw. Obviously each pillow block is .firmlysecured in the desired adjustment by tightening the bolt d and the nut(i with which the said block is provided.

To prevent injury, during the operation of V the saw, to a personemployed or-engaged at or near the saws side that is opposite to themachines side that carries the bolt-carriage from the serrated end ofthe saw or from the exposed heads of the bolts or screws employed insecuring the cylindrical shell of the saw to the shell-bearing head 1),two saw-guards s and sare provided at the saidside of the saw and atopposite ends, respectively, of the saw. The two saw-guards aresupported from different levers s and s, respectively, that are fulcrumed at their lower ends, as at to the pedestals of the bed. The fulcrnmsof'the guard-levers have their axes coincident and are arrangedlongitudinally of the bed, and the levers are connected by arod or bar 8by which the said levers and the guards borne thereby can besimultaneously swung toward or from the saw. InFig. II the said guardsare shown swung from the saw. In Fig. III the guards are swun'gtowardthe saw and are locked in their operative position by a latch u, that isformed upon the inner end of an oscillating shaft u, that is supportedfrom the forward guard-lever and is provided with The latch in itsoperative position, as shown in Fig. III, engages the adjacent end wallof the pillow-block-containing recess a of the forward pedestal, andobviously the said latch is rendered inoperative or operative, accordingas the latch-bearing shaft is oscillated in the one or the other IISdirection. Guard locking means substantially as that hereinbeforedescribed may be provided at the rear end of the saw.

In Figs. XVII and XVIII, w designates a bolt that is being operatedupon. The bolt is placed upon the bolt carriage with its thicker portiondown. As already indicated, the first piece cut from the bolt is Waste.The dotted lines (marked m) in Fig. XVIII designate the outer or convexsurface of three staves that are to be cut from the bolt. Obviously whenthe third stave has been sawed from the bolt one or more Wedge-shapedpieces can be sawed off to advantage, as indicated in Fig. XVII, withoutwasting any of the bolt, so far as the number of staves obtainable fromthe bolt. is concerned, and avoiding sawing of the bolt materially outof line radially of the bolt. To accommodate the removal of the surplusof material from the central portion of the lower or thicker part of thebolt after sawing several staves from the bolt, the gageplate It,employed in the regulation of the thickness of the staves, is hinged atits lower edge horizontally and longitudinally of the gage, so as torender the gage-plate capable of being tilted forwardly or laterally inthe direction of the bolt-carriage, and when the gage-plate is thustilted, as shown in Fig. XVIII, after sawing several staves from thebolt it will be observed that the surplus of material at or near thelower central portion of the bolt can be readilyremoved. In Fig. XVIIIthe bolt is in position to have a wedgedshaped piece cut therefrom.

The means employed in securing the gageplate It to each arm 72. of thegage-carriage (see Figs. IV and X) comprises a bolt 72 and a nut 71 Thebolt h extends loosely through a hole formed in the respective arm intothe channel it, formed within and extending longitudinally of the backside of the gage-plate, centrally between the lower and upper edges ofthe said plate. Opposite side walls of the saidchannel 716 are undercut,and the bolt 77, is arranged with its head engaging the enlarged portionof the channelbetween the undercut portions of the said walls, and aspiral springo is mounted and confined upon the bolt between the outerside of the aforesaid arm h and the nut h mounted upon thecorrespondingly-threaded shank of the said bolt. The springs upon thebolts 7r obviously act to retain the gage-plate in its normal position,wherein its face or forward side extends concentrically of the saw, asalready indicated. r

The hinge connection between the gageplate and the arms 72 of thegage-carriage is formed, preferably, as follows: Two correspondingplates 71. and 77. are arranged a suitable distance apart between and ator near the different arms h and 72 respectively. Each plate h issecured to the back side of the gage-plate by means of a bolt 71, and anut h. The bolt h is arranged with its head engaging the inner andenlarged portion of the channel It, as shown in Fig. IV, and extendsthrough the end plate h", and the nut 71 is mounted upon the bolts shankat the outer side of the said plate. Each plate It terminates at itslower end in an eye or sleeve h The sleeves or eyes h of the two platesh are arranged in line and embraceopposite end portions, respectively,of the pintle It, of the aforesaid hinge connection. The pintle 7ibetween the plates h is embraced by a sleeve 72. that is provided uponits lower side with two flanges 71 and 71. that project beyond oppositeends, respectively, of the said sleeve and are rigidly secured to thedifferent arms 71. and 71. respectively.

Means for locking the gage in its normal position is provided andcomprises, preferably, two lugs h and 71, projecting laterally fromopposite ends, respectively, of the sleeve h in the direction of theaxial line of the saw. Each lug it has its outer end provided with ashoulder h (see Figs. IV, V, and IX,) that faces in the directiop of theaxial line of the saw and is engaged by the hook-forming end of a latchto, operatively mountedupon an oscillating shaft to, that is arrangedhorizontally and longitudinally of the backside of the gage-plate andhas bearing in two boxes by means of the lever r0 is turned in the onedirection or the other. The latches w are of course held and renderedinoperative preparatory to the tilting of the gage forwardly, ashereinbefore described. The hand-lever 'w is also employed in tiltingthe gage-plate,

and to render this possible the shaft w is provided with two lugs L0 andw arranged a suitable distance apart longitudinally of the shaft andarranged, furthermore, as required to render them capable of engaging ashoulder h", form ed upon the back side of the gageplate when the leverhas been actuated the distance required to render the latchesinoperative, so that the further actuation of the lever in the samedirection shall result in the aforesaid tilting of the gage against theaction of the springs '0.

What we claim is 1. In a machine of the character indicated, thecombination, with the stationary bed of the machine, the cylindersaw,supported from the said bed, the bolt-carriage for actuating thestave-bolt, that is to be operated upon, longitudinally of the saw, anda frame bearing the said carriage and rigid with the.

bed, of a gage-plate arranged forward and concentrically of the sawbetween the boltcarriage and the saws axial line, a carriage bearing thesaid plate and arranged below and having a travel at right angles to thetravel of the bolt-carriage and being supported from the aforesaidframe, and means for actuating the gage-carriage in opposite directions,and the arrangement of parts being such that the gage-plate is actuatedradially of the saw in the one direction or the other according as thetravel outside of and longitudinally of the saw, and the frame bearingthe bolt-carriage and rigid with the aforesaid bed, of a gageplatearranged forward and concentrically of the saw between the path of thebolt-carriage and the axial line of the saw, two slides supported fromthe aforesaid frame below and arranged and movable at right angles tothe travel of the bolt-carriage and having upright arms bearing theaforesaid plate, and means for actuating the said slides simultaneously,and the arrangement of parts being such that the aforesaid gage-plate isshifted radially of the saw in the one direction or the other accordingas the aforesaid. slides are actuated in the one or the other direction.

3. In a machine of the character indicated, the combination, with thestationary bed of the machine, the cylinder-saw supported from the bed,the bolt-carriage arranged and movable outside of and longitudinally ofthe saw, and the frame bearing the said carriage and rigid with the bed,of a gage-plate arranged forward and concentrically of the saw betweenthe travel of the bolt-carriage and the axial line of the saw, twoslides arranged below and at right angles to the travel of thebolt-carriage, slideways formed upon and at the lower side of theaforesaid frame, racks formed upon the lower sides of the said slides, ashaft supported from the said frame, pinions operatively mounted uponthe shaft and meshing with the racks, and means for turning the shaft,substantially as and for the purpose set forth.

4. In a machine of the character indicated, the combination, with thestationary bed of the machine, the cylinder saw supported from the bed,the bolt-carriage arranged and movable outside of and longitudinally ofthe saw, and a frame bearing the said carriage and rigid with the bed,of a gage-plate arranged forward and concentrically of the saw betweenthe saws axial line and the path of the bolt-carriage, two slidesarranged a suitable distance apart below and at right angles to the pathof the bolt carriage, slideways formed upon the aforesaid frame for thesaid slides,racks formed upon the lower sides of the slides, apinion-bearing shaft supported from the said frame and havingits pinionsmeshing with the racks and provided witha lever, the

hand-lever f ulorumed to the aforesaid frame,

a link operatively connecting the hand-lever with the aforesaidshaft-lever, and means forlocking the hand-lever in the desired adjust;

ment, substantially as shown, for the purpose specified.

5. In a machine of the character indicated, the combination, with acylinder-saw and the bolt-carriage arranged to move outside and the backside of the plate, and the pintle or pin forming the axial connectionbetween the said sleeves.

6. In a machine of the character indicated, the combination, with thecylinder-saw, and the bolt-carriage arranged and movable outside andlongitudinally of. the saw, of a gageplate arranged forward andconcentrically of the saw between the saws axial line and the path ofthe bolt-carriage and adjustable radially of the saw, the frame orsupport that bears the gage-plate, a hinge connection between the plateand its support and formed by a horizontally arranged sleeve formed uponthe plates support longitudinally of and at or near the lower edge ofthe plate, and two cars or sleevesarranged in line with thefirst-mentioned sleeve and formed upon the back side of the plate, andthe pintle extending within and longitudinally of the said sleeves.

7. In a machine of the character indicated, the combination, with thecylinder-saw, the bolt-oarriage arranged and movable outside andlongitudinally of the saw, and a gageplate arranged forward andconcentrically of the saw between the saws axial line and the path ofthe bolt-carriage, the frame or support that bears the said plate, andsuch a hinge connection between the gage-plate and its support, at theplates lower edge, as will render'the plate capable of being tiltedlaterally toward the path of the bolt-carriage, of a shaft supported andarranged longitudinally of the back side of the gage-plate, a leveroperatively mounted upon the shaft and an arm formed upon the shaft andarranged to engage the back side of the gage-plate upon moving the leverin the required direction.

8. In a machine of the character indicated, the combination, with acylindersaw, the bolt-carriage arranged and movable outside andlongitudinally of the saw, and a gage-plate arranged forward andconcentrically of the saw between the saws axial line and the path ofthe bolt-carriage, the frame or support that bears the gage-plate, andsuch a hinge connection between the said plate and its support, at theplates lower edge, as will render the plate capable of being tiltedlaterally toward the path of the bolt-carriage, of a shaft supportedfrom and arranged longitudinally of the back side of the gage-plate, alever operatively mounted upon the shaft and extending upwardly abovethe gage-plate, and arms formed upon the shaft and arranged to engagethe back side of the gage-plate upon moving the lever toward the path ofthe bolt carriage.

9. In a machine of the character indicated, the combination, with thecylinder-saw, the bolt-carriage arranged and movable outside andlongitudinally of the saw, a gage-plate normally arranged forward andconcentrically of the saw between the saws axial line and the path ofthe bolt-carriage, the frame or support that bears the said plate, andsuch a hinge connection between the gage-plate and its support, at theplates lower edge, as will render the plate tiltable laterally towardthe path of the bolt-carriage, of a shaft supported from and arrangedlongitudinally of the back side of the gage-plate, a lever operativelymounted upon the shaft, a projection formed upon the gage-support behindthe gage below the shaft, and a latch operatively mounted upon the shaftand arranged to engage and overlap the outer end of the'aforesaidprojection in the normal position of the gage-plate, substantially asand for the purpose set forth.

10. In a machine of the characterindicated, the combination, with thecylinder-saw, the bolt-carriage arranged and movable outside andlongitudinally of the saw,a gage-plate normally arranged forward andconcentrically of the saw between the saws axial line and the path ofthe bolt-carriage, the frame or support that bears the said plate, sucha hinge connection between the gage-plate and its support at the plateslower edge as will render the plate tiltable laterally toward the pathof the bolt-carriage, of a shaft supported from and arrangedlongitudinally of the back side of the gage-plate, a hand-leveroperatively mounted upon the said shaft, two projections formed upon thegagesupport behind the gage below the shaft and a suitable distanceapart, and latches operatively mounted upon the shaft and arranged toengage and overlap the outer ends of the aforesaid projections in thenormal position of the gage-plate, substantially as and for the purposeset forth.

11. In a machine of the characterindicated, the combination, with thecylinder-saw, and the bolt-carriage arranged and movable outside andlongitudinally of the saw, a gageplate arranged forward and normallyconcentrically of the saw between the saws axial line and the path ofthe bolt-carriage, the frame or support that bears the said plate, andsuch a hinge connection between the gageplate and its support at theplates lower edge as will render the plate tiltable laterally toward thepath of the bolt-carriage, of two suitably-applied springs arranged atthe back side and a suitable distance apart longitudinally of the gageand acting to retain the gage in its normal position. v

12. In a machine of the characterindicated, the combination, with thecylinder-saw, and the bolt-carriage arranged and movable outside of andlongil udinally of the saw, a gage plate arranged forward and normallyconcentricall y of the saw and between the saws axial line and the pathof the bolt-carriage, the frame or support that bears the said plate andis arranged at the back side of the plate, and such a hinge connectionbetween the gage-plate and its support at the plates lower edge as willrender the plate capable of being tiltable laterally toward the path ofthe boltcarriage, of bolts connected with the back side of the gage andextending through the gagesupport, and springs confined upon the saidbolts at the outer side of the gage-support and acting to retain thegage-plate in its normal position.

13. A machine of the character indicated, comprising a cylinder-saw, thebed supporting the saw, a frame 6 arranged alongside and longitudinallyof the saw and comprising two side members e and 6' arranged a suitabledistance apart and provided, respectively, with, an inwardly andlaterally projecting flange extending longitudinally of the frame, atrack having its rails formed upon the outer side of the difierent sidemembers e and 6, respectively, a bolt-carriage having wheels engagingthe said rails, other wheels having their peripheries engaging theflange of the inner side member 6, and rollers or wheels having theirperipheries engaging the lowerside of the flange upon the other sidemember 6, substantially as and for the purpose set forth.

ll. A machine of the character indicated, comprising a cylinder-saw; thebed supporting the saw; a frame rigid with the bed at one side of thesaw, which frame is arranged longitudinally of the saw and comprises thetwo side members e and 6 arranged a suitable distance apart laterallyand inclined in the direction of the saw, and a flange formed at the topand extending longitudinally of the outer member e; a track having itsrails formed upon the outer side of the different members 6 and 6,respectively; the bolt-carriage having wheels engaging the said track;means for preventingdisplacement of the carriage laterally in thedirection of the saw; wheels supported from the carriage and engagingthe nnder side of the aforesaid flange and having external annularflanges arranged to cooperate with the edge of the said flange inpreventing outwardly lateral displacement of the carriage.

15. A machine of the character indicated, comprising a cylinder-saw; thebed supporting the saw; a frame rigid with the bed at one side of thesaw, which frame is arranged longitudinally of the saw and comprises thetwo side members a and e arranged a suitable distance apart laterallyand inclined toward the saw, and provided, respectively, upon the outerside, with a series of lugs arranged at suitable intervalslongitudinally of the frame; a rail-forming bar mounted upon the seriesof lugs of each member e; the bolt-carriage having wheels engaging thesaid rails; means for preventing displacement of the carriage in thedirection of the saw, and means for preventing displacement of thecarriage upwardly from the rails.

' 16. In a machine of the characterindicated, the combination, with thecylinder-saw, the bolt-carriage arranged and movable at one side andlongitudinally of the saw, and the I track engaged by the said carriage,of a rod arranged below and longitudinally of the path of the carriageand provided with an external shoulder, a spiral spring mounted upon thesaid rod and arranged to bear, at one end, against the said shoulder, acase or cover externally of the spring and arranged to bear against theopposite end of the spring and having an arm arranged to be engaged andactuated by the bolt-carriage during the travel of the said carriageduring the sawing operation.

17. In a machine of the character indicated, the combination, with acylinder-saw, the bolt-carriage arranged and movable at one side andlongitudinally of the saw, and the track engaged by the said carriage,of a stationary rod 0 arranged below and longitudinally of the path ofthe carriage and provided with the shoulders 0 the spiral spring 0' uponthe said rod, and the casep having the head 1) and the arm 10 allarranged and operating substantially as shown, for the purposespecified.

18. In a machine of the character indicated, the combination, with thehorizontally or approximately horizontally arranged shaft, acylinder-saw operatively mounted upon the shaft, the bolt-carriagearranged to move longitudinally and at one side of the saw, and thesupport for the bolt-carriage, of a trough arranged within andlongitudinally of the saw between the shaft and the bolt-carriage, atrack-forming rail mounted or formed upon the upper portion of the innersidewall of the trough, and the stave-ejector arranged to operate withinand endwise of the trough, which ejector is operatively connected withthe bolt-carriage andis provided with a memproximately horizontallyarranged shaft, the

cylinder-saw operatively mounted upon the shaft, the bolt carriagearranged to move longitudinally of the saw at one side of the latter,and the support for the bolt-carriage, of a trough arranged within andlongitudinally I of the saw, between the shaft and the boltcarriage, ofa track-forming rail-mounted or formed upon the upper portion of theinner side wall of the trough, and the stave-ejector arranged to operatewithin and endwise of the trough, which ejector is operatively connectedwith the bolt-carriage and is provided with a half-sleeve slidablymounted upon the aforesaid rail.

20. In a machine of the characterindicated, the stationary bed at havingthe pedestals a and a and the two laterally-projecting andupwardly-inclined arms or brackets 61, and a a rectangular frame 6removably mounted upon and rigid with the said arms and arrangedlongitudinally of and a short distance from the saw and extendingforwardly of the forward end of the bed and forward of the saw, whichframe is composed of a single casting forming two parallel side memberse and e that extend longitudinally of the frame and are arranged atright angles to the frame-bearing surface of the aforesaid arms; thetrack-forming railsf and f supported from the outer side of thedifferent aforesaid side members, respectively, and arrangedlongitudinally of the said side members; the bolt-carriage mounted uponand movable endwise of the said rails; the cylinder-saw supported fromthe aforesaid pedestals and arranged longitudinally of the path of thebolt-carriage and adjustable laterally toward and from the carriage;means for securing the saw in the desired adjustment, and a gagearranged forward and concentrically of the saw between the saws axialline and the path of the bolt-carriage and supported from the aforesaidframe.

Signed by us at Cleveland, Ohio, this 29th day of January, 1900.

RUDOLPH P. GERLACH. FRANK STAHL. Witnesses:

C. H. DORER, c A. H. PARRATT.

